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Journal Articles Nature Reviews Methods Primers Year : 2021

Single-molecule localization microscopy

Abstract

Single-molecule localization microscopy (SMLM) describes a family of powerful imaging techniques that dramatically improve spatial resolution over standard, diffraction-limited microscopy techniques and can image biological structures at the molecular scale. In SMLM, individual fluorescent molecules are computationally localized from diffraction-limited image sequences and the localizations are used to generate a super-resolution image or a time course of super-resolution images, or to define molecular trajectories. In this Primer, we introduce the basic principles of SMLM techniques before describing the main experimental considerations when performing SMLM, including fluorescent labelling, sample preparation, hardware requirements and image acquisition in fixed and live cells. We then explain how low-resolution image sequences are computationally processed to reconstruct super-resolution images and/or extract quantitative information, and highlight a selection of biological discoveries enabled by SMLM and closely related methods. We discuss some of the main limitations and potential artefacts of SMLM, as well as ways to alleviate them. Finally, we present an outlook on advanced techniques and promising new developments in the fast-evolving field of SMLM. We hope that this Primer will be a useful reference for both newcomers and practitioners of SMLM.
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Dates and versions

pasteur-03695794 , version 1 (15-06-2022)

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Mickaë Lelek, Melina T Gyparaki, Gerti Beliu, Florian Schueder, Juliette Griffié, et al.. Single-molecule localization microscopy. Nature Reviews Methods Primers, 2021, 1 (1), pp.39. ⟨10.1038/s43586-021-00038-x⟩. ⟨pasteur-03695794⟩
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